金融成长与中原经济区发展

依据历年经济数据，通过建立协整与误差修正模型，实证表明了无论是短期还是长期视角，中原经济区的发展将很大程度上依赖于该区域金融的成长。政府应该从金融生态、金融制度、金融市场和金融组织4个方面提供具体的金融支持政策，来促进中原经济区的金融成长，充分发挥金融对经济的推动作用，抓住机遇推进中原经济区快速发展。     

中国石油消费与经济增长关系的时间序列分析

随着中国经济的迅速崛起,石油消费量不断增加.分析了中国经济发展过程中石油消费总量的变化趋势,并且对1953-2004年中国经济增长和石油消费状况进行了深入研究.在此基础上,运用协整理论和Granger因果关系检验理论,按照不同的时间序列对中国石油消费与经济增长之间的关系进行了实证分析.结论表明:1953-2004年,中国石油消费量与经济增长之间存在协整关系,石油消费量的增加是经济增长的原因;1978-2004年,中国石油消费量与经济增长之间同样存在协整关系,经济增长与石油消费量之间具有显著的单向因果关系.     

Random sampling of long-memory stationary processes

This paper investigates the second order properties of a stationary process after random sampling. While a short memory process gives always rise to a short memory one, we prove that long-memory can disappear when the sampling law has heavy enough tails. We prove that under rather general conditions the existence of the spectral density is preserved by random sampling. We also investigate the effects of deterministic sampling on seasonal long-memory.     

Identification of fractional differencing autoregressive models †

This paper proposes an identification method to fractional differencing autoregressive models, and this method gives a consistent estimator for fractional differencing order and efficient estimates for parameters in fractional differencing autoregressive models.     

A bivariate fractionally cointegrated relationship in the context of cyclical structures

This paper deals with the analysis of cointegration in a bivariate system. However, we depart from the classic concept of cointegration in two aspects. First, we permit fractional degrees of integration in both the parent series and in their linear combination. Second, instead of assuming that the pole or singularity in the spectrum takes places at the zero frequency, we consider the case where the singularity occurs at a frequency λ in the interval (0, π]. We use a procedure that follows the same lines as the two-step testing strategy of R.F. Engle, and C.W.J. Granger, [Cointegration and error correction model. Representation, estimation and testing, Econometrica 55 (1987), pp. 251–276]. Thus, we test first the order of integration in the individual series, which are specified in terms of the Gegenbauer polynomials. Then, if the two series share the same degree of integration at a given frequency, we test the null hypothesis of no cointegration against the alternative of fractional cyclical cointegration, by testing the order of integration on the estimated residuals from the cointegrating regression. Finite sample critical values are obtained, and the power properties of the test are examined. An empirical application is also carried out at the end of the article.     

Differences in wage determination in the Eurozone: A challenge to the resilience of the common currency

Different developments in wages and unit labor costs across countries can reduce the synchronization of business cycles within a currency area and therefore be a potential source of asymmetric shocks and/or asymmetric response to a common shock. In this paper, we use novel econometric methods to identify differences and similarities in wage determination across Eurozone countries. Results show that wages have different determinants across euro area countries, among which two relatively distinct groups can be identified. In particular, wages in Germany, Austria, Belgium, Luxembourg, the Netherlands and Finland behave more similarly, are less sticky and respond more to macroeconomic conditions than those in the group composed of Italy, Spain, Portugal, France and Ireland. Moreover, the equilibrium wage has been affected by a structural change contemporaneous to the international financial crisis. Finally, structural reforms since the euro crisis have contributed to make labor market structures in Eurozone countries more similar, which contributed to improve the resilience of the Eurozone, but the job is not completed yet.     

The impact of the term spread in US monetary policy from 1870 to 2013

In this paper, we apply a novel econometric approach joint with an exhaustive revision of the main events in the history of US monetary policy in order to check the effectiveness of monetary policy focused on interest rates. Unlike the traditional cointegration approach, this new methodology allows us to break with the rigidity of traditional approaches in favour of letting the series be cointegrated, and the spread is able to follow a long-memory process; i.e., it does not necessarily need to be I(0) and also rejects the assumption that interest rates could follow the dichotomy I(0)/I(1). To the best of our knowledge, this is one of the first applications of the Fractionally Cointegrated Vector Autoregressive (FCVAR) model (Johansen and Nielsen (2012) and Nielsen and Popiel (2016)). Aiming to achieve this goal, we use two databases, i.e., the Jordà-Schularick-Taylor Macrohistory Database and Shiller’s database. Our results cannot reject the Expectations Hypothesis of Term Structure in this time period, and more importantly, we also find that the long-term rate drives the long-run relationship, contributing to the total proportion to the common trend; the persistence of the spread shows us effective control power over interest rates by the Fed.     

Coalition Formation and Cost Allocation for Joint Replenishment Systems

This paper focuses on the issues of coalition formation and cost allocation in a joint replenishment system involving a set of independent and freely interacting retailers purchasing an item from one supplier to meet a deterministic demand. The papers dealing with this problem are mainly focused on supperadditive games, where the cost savings associated with a coalition increase with the number of players in the coalition. The most relevant question addressed then is how to allocate the savings to the players. In this paper, we propose to go further by dealing with a non‐supperadditive game, where a set of independent retailers have the common understanding to share the cost savings according to the cost‐based proportional rule. In this setting, the global cost optimization is no longer a relevant approach to identify appealing coalitions for any retailer. Here, we provide an iterative procedure to form the so‐called efficient coalition structure and we show that this coalition structure has the nice properties of being (i) weakly stable in the sense of the coalition structure core and (ii) strongly stable under a given assumption. An exact fractional programming based solution is also given to generate such efficient coalitions.     

人力资本投资对农户非农就业的影响分析与验证

基于1980-2008年全国农村住户调查数据,通过建立多元协整的向量误差修正(VEC)模型以及格兰杰因果检验,分析了人力资本投资对农户非农就业的影响。得出主要结论:农户的教育、健康、迁移投资以及农户的非农收入存在长期稳定的均衡关系;农户的教育投资以及迁移投资与农户非农收入为双向格兰杰因果关系,但是健康投资为农户非农收入的单向格兰杰原因;教育投资对于农户非农就业有显著的正向影响,而健康与迁移投资对农户非农收入影响不稳定。最后,在归纳总结实证分析结果的基础上,提出了具有针对性的政策建议。     

福建省区域金融发展与经济增长关系实证研究

运用单位根检验、协整检验和Granger因果关系检验,对福建省金融发展与经济增长关系进行实证分析。研究表明,福建省经济增长与金融发展之间存在长期均衡关系;金融相关度与经济增长之间互为因果关系;由于证券市场不完善、实际利率水平较低,福建省证券市场发展程度与经济增长无因果关系;金融自由化对促进经济增长作用甚微。为此,提出加大金融创新力度、完善金融服务体系、提高金融市场开放水平等政策建议。